Sinumerik Alarm 26000 Axis %1 clamping monitoring

Sinumerik Alarm 26000 Axis %1 clamping monitoring

%1 = Axis name, spindle number

The clamped axis is to be pushed out of its setpoint position. The permissible difference is defined in the axis-specific machine data 36050 CLAMP_POS_TOL. Clamping of an axis is activated with the axis-specific interface signal DB 31 – 48, DBX 2.3: “Clamping process active”. The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).

– Mode group not ready.
– Channel not ready.
– If the axis is a single axis when this alarm is triggered, the alarm is only effective for this axis (not effective for e.g. the channel or mode group)
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.

Determine the position deviation to the setpoint position and, depending on the results, either increase the permissible tolerance in the MD or mechanically improve the clamping (e.g. increase clamping pressure).

Program Continuation:
Clear alarm with the RESET key in all channels of this mode group. Restart part program.


  1. Siemens Diagnostics Guide by Siemens
Sinumerik Alarm 26000 Axis %1 clamping monitoring